Pipe puller



Jan. 80, 1923. 7 1,443,463.

C. R. EDWARDS.

PIPE FULLER.

FILED JAN 17. 1921.

2 SHEETSSHEET I.

abtomm s Jan. 30, 1923. 1,443,463. I c. R. EDWARDS.

PIPE PULLER.

FILED jAN=1I, 1921. 2 SHEETSSHEET 2- 20 tion and which can Patented Jan.30,1923.

PATENT OFFICE.

. c'nnzanns Jan-EDWARDS, or nous'r'oiw 'rnxns- IPIIE I ULLER.

i Application-filed January 17, 1921. sci-mine. 437,969.

To all who'nt'it may concern} Be'it known that 1, CHARLES a citizenoff-the United States, residin -at Houston, in the-county of Harris andte of Texas, have invented certain new and useful Improvements in a PipePuller, oi which the followingis a specification. I

I Thisinvention relate'sto'new and useful" I imarovements in a pipepulling device. I I nc object of the invention'is to' provide a"pipepuller which may be readily letdown into a well bore and engaged'withnthe pipe thereinto be pulledand which may be readily released fromthepipe'in case the-pipe cannot be withdrawn or when'it is for any I I.threadedfonto the vlowerend of the stem' reasondesirable to release thesame.

v Another object of the invention is "to pro- .vide a device ofthecharacter described which'is'simple in construction and opera"consequently be cheaply manufactured.

f 4 With the above and other objects in view" the invention hasparticular. relation I to certain novel featuresfjof constructionyop'eration and arrangementiof parts, an example.

of which is given in thi'sfspecification and illustrated in theaecompanyingdrawings,

wherein:.- f I Figure]. is a vertical-sectional view of the 3c device,sho n in engagement with the ipe I to be pulled,-.and J U Eigure2 is avertical'sectidnalfview of the case the pipe'is stuckin the bore andcannot device, shown'in released position. r V Referring now morepartieula' ly'gto the 85 drawingsigwherein ijlikejnumerals of'refer-.ence desig'n'ate simila'rlparts in.;.e'ach of the. "figurcs, thenumeral Irefersto the pipe to. ,f be'pulled and the numeral 2:designates the tubing tothe lower end of which the-devic 4'0.hereinafter described, is attached." Thread:

ed onto the vlower endof saidtubing there is a nipple. 3; This.nipplesupports the stemfl whose upper. end {is threaded: therein. \The vlower end'of the" nipple 3 is spaced from said stem an'd hascoarse'internalthrea'd's} Fit-.-

ted onto the stem there is; an" expanding .s1eeve5 whose upper, end .is.threaded into the lowerend of said nipple and the lower end 5" of saidsleeve isiflared.

R, EnwARDs,

intoengagement with the ijpe and a fur and as thetubingis turned, asabove stated, the expanding sleeve '51-w1ll be unscrewed Underneath v1S0saidexpanding sleeve and spaced therefrom, withdrawn. from. the bo 4there is an annular anchor 6 which surrounds the sleeve 4 andanchoredfto the upper end of said anchor are the'pipe engaging jaws 17.These jaws have a certain amount of flexibility and have their upperends some- 5 what thickened. The outer face of the thick,

ened portion is serrated forming pipe engaging teeth 8 and the innervsides sloping to fit closely agams t the'flared' lowerend 5 oftheexpanding sleeve -5. The anchor 6 has a cup ring 9 clamped thereoirbymeansof:

The ldck I nut 11 is spaced relative to the fclan p 'nut" 10 so' as toa' limitedvertical movement of the anchor 6 relative to the stem.

bcrejthe device is let down into the bore by means" ofthe tubing 2 andenters the'pipe to be pulled. The tubing 2 is than suddenly" Ipandingsleeve 5 to move-upwardly relative; I:

to the jaws 7 'and'this' will expand said iilws the: upward. ull willusu a 1y result in the? withdrawal 0 the piPQ, fromthe bore. -In

order to release" it the tubing 2 is turned to "the"1'ight, causing asimilarv turning of the nipple. '3. in 1-,hevstem". 4. The expanding Isleeve5, how ever,"i s heldag'ainst turningby f meansof the pins 12whichv are threaded into saidsleeve-and whose outer ends project outbetween the jaws 7, It is tobe here noted I that the threads connectingthe nipple 3 and the -'e xpanding sleeve 5 areleft-ha'nd threads andforced; downwardly into the position shown in Figure 2;thusreleasing'the Jaws from the pipe and the dev ce may then be t. "Whenit-is'desired to pull .a pipe from a- It is tobe noted that during theoperation of pulling the pipe, water may be forced under pressure downthrough the tubing 2 and the stem 4, and the pressure of the fluid Wlllcause the cup ring 9 to expand and prevent the return of the water up ontheoutside of it, thus materially assisting in loosening the pipe inthejbore;preparatory to. the-withdrawal from the bore. a

What I claim is V I T v y l. A pipe puller, -including a stem, an anchorslidably mounted on the stem,- pipe engaging jaws attached to the anchorand normally engaging the pipe, and. means :attached to the stem by asingle threaded part through the rotation oi .which said jaws maybereleased from said pipe. i

2 A pipe puller, including a stem, an

anchor slidably mounted on the ;stem,-"pipe engaging jaws attached tosaid anchor and normally out of engagement with. thepipe said tojbepulled, means movable on the stemand; adapted, to expand said jawsintoen gagement with the pipe and a device car-.

ried by the stem,- and connected to the ex panding means by, a threadedconnection, for actuating said expanding means.

3.Y A pipe puller, including .a stem; an fillOhOi'iSlldfi-blj'f mountedthereon, pipe 'en gaging jaws attached to said anchor, an expandingsleeve slidably mounted onthe stem and against which said jaws bearwhereby they areheld in. engagement with the pipe, I andmeans sustainingthe ,stem

and threaded onto the sleeve through} which aws. f A pipe puller,including a stem, ,an anchorslidably mounted thereon, pipe engagingjawsattached to the anchor, an-,.ex-. ding member against which thejawsbear. whereby they are normally sition toengage with the pipe-to bepulled, and a (nipple sustaining the, stem, and threaded onto saidmember through .which said member may beactuated into position to effectthe engagement of said ,jaws with, or to release thejaws from the pipe.J

5.,,A pipe puller, including astem, an

sleevemay be actuated to release said out, .pf engagement pulled, anexpanding against which. thejawsfworl; and. whereby sa d jaws areexpanded into, engagement withfthe'pipe, and stem isattached said nipplebeing connected to a am 'mb ri by. i le. ad, and when. rotated,actuating the same to release Ajp p 1 1 i udi e S i ta nt 31 1011slidable thereon, pipe engaging jaws attached to the anchor,

held in poslidable thereon, pipe' engaging anchor.- and normally withthepipe to be, member onthe stem,

a nipple to which. the

j a flared sleeveon the 'stem against the'periphery ofowhich the I jawsrest, a nipple threaded onto said sleeve and to which the stem isattached, means for rotating said nipple to actuatethe sleeve lengthwiseon the stem.- v y 7. A pipe puller, including a stem, an anchor slidablethereon, pipe engaging jaws attached to the anchor, a flared-sleeve onthe stem against the periphery of which the.

jaws rest, a nipple threaded onto said sleeve and to which the stem'isattached, means for 'rotating said nipple to actuate the sleeve 4lengthwise on the stem, and means for preventing the rotation of the'sleeve relative to said jaws.

8. A pipe puller including atubular stem,

pipe engaging means slidably mounted rela tive to the stem, an expandingmember adapted, when in one position to expand said" means intoengagment with-the pipe said expanding means being attached to the stembya single-threaded part through the rotationof which said pipe engagingmeans may be released from the pipe. v

9. A pipe puller including a tubular'stem,

pipe engaging me'a' ns slidably mounted "on, e stem, :1 member adaptedto actuate said engaging means into. engagement with the pipeto-bepulledandmeans attached to the stem and connected to said actuating means by asingle-threaded part, throughthe rotation of which "saidpipe engagingmeans may be released from the pipe.

-1(). A pipe-puller including a stem, an

'anchor-slidabl-y-mounted on the stem, pipe engaging jaws attached tothe anchor, means attached to the stem through the rotation i of whichsaid .jaws maybe permitted to -contract to releasethem from thepi'pe,'said stem having a water. course leading downwardly through; it to admitwater-through the pipe puller into the pipe .beneath-itfif 7 l1. A'PlPE-PHHGI. including a stem, an anchor slidably mounted on the stem;pipe engaging jaws attachedstogthe anchor, means attached -'t0=ithe stemthrough the rotation lot which said jaws-may be permitted"to contract torelease them from the pipe, said stem havinga water eourseleadmg'downwardly through itto'admit water through I the pipe puller into theand a cup ring surrounding the device and fitting within the pipe to,-viee. V

12. pipe puller including a t ilo'ular sit'em, an anchor slidablymountedon the 3 pipe-beneath it,

'11 be pulled to r Vent? the returnofh Water-around the =depipe engagingjaws attached to the f anchor and normally. engaging "the pipe, an

expanding sleeve whose lower end; is: flared and bears against theinnerside of said jaws, said expanding sleeve ;.having a threadedconnection with an operatingtube through.

which it may be mani ulated Q13. A: pipe puller ncluding an anchor,

means through which said members may be two subscribing witnesses.

engaged with and released from a pipe into which the device isadapted'to be inserted,

said device being provided with a water course extending downwardlytherethrough.

In testimony whereof I have signed my CHARLES R. EDWARDS.

Witnesses:

R. M. SMITH, WM. A. CATHEY.

'pipe engaging members carried thereby, name to this specification inthe presence of

